Climatological Report (Monthly)
Issued by NWS

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CXUS55 KBYZ 011041
CLMLVM


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
438 AM MDT FRI MAY 1 2020

...................................

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            81   04/29
LOWEST              4   04/13
AVG. MAXIMUM     54.8              55.0    -0.2
AVG. MINIMUM     27.4              29.1    -1.7
MEAN             41.1              42.1    -1.0
DAYS MAX >= 90      0
DAYS MAX <= 32      4
DAYS MIN <= 32     17
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           0.64              1.77   -1.13
DAYS >= .01         7
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.24   03/31 TO 04/01

DEGREE_DAYS
HEATING TOTAL     710               689      21
 SINCE 7/1       6690              6953    -263
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.1
HIGHEST WIND SPEED/DIRECTION    43/290    DATE  04/23
HIGHEST GUST SPEED/DIRECTION    53/250    DATE  04/17

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                3     SNOW                       3
LIGHT SNOW                8     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      2
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...APRIL 2020 MONTH IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR APRIL 2020. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY RANKINGS
FOR PRECIPITATION AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN JULY 1948 AT OR NEAR THE LIVINGSTON AIRPORT.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

... MONTHLY PRECIPITATION...

 MONTH   2020 VALUES  NORMALS    DEPARTURE  RANKING

APRIL        0.64     1.77       -1.13      10TH DRIEST OUT OF 72 YEARS
                                            (RECORD DRIEST WAS 0.23 IN 1980)
                                            (DRIEST SINCE 0.45 IN 2013)

... APRIL 2020 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

NOTE: SINCE THE LATE 1990S...LIVINGSTON BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.

... AVERAGE TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        41.1      42.1      -1.0      TIED FOR THE 23RD COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 33.7 IN 1975)
                                           (COLDEST SINCE 39.7 IN 2018)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        54.8      55.0      -0.2      29TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 69.0 IN 1987)
                                           (WARMEST SINCE 55.9 IN 2017)

... APRIL 2020 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... APRIL 2020 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

27 ON APRIL 12 (OLD RECORD 28 IN 1957)

... AVERAGE LOW TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        27.4      29.1      -1.7      TIED FOR THE 9TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 25.4 IN 1975)
                                           (COLDEST SINCE 26.1 IN 2018)

... APRIL 2020 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

... APRIL 2020 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

8 ON APRIL 12 (OLD RECORD 18 IN 1965)
4 ON APRIL 13 (OLD RECORD 12 IN 1986)
15 ON APRIL 16 (OLD RECORD 16 IN 1964)

$$




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